What Does FHST Stand For?

FHST stands for Fixed Head Star Trackers

FHST, or Fixed Head Star Trackers, are precision optical devices used in space applications to determine the orientation of a spacecraft by utilizing celestial references. These systems are designed to capture the position of stars in real-time, enabling accurate inertial navigation and attitude control. By maintaining a fixed orientation while tracking star positions, FHSTs provide reliable information for stabilizing and guiding spacecraft in various missions, including satellites, probes, and crewed vehicles. Their robustness and accuracy make them essential components in modern aerospace engineering.